Image Compressor
Reduce an image's file size right in your browser, keeping its dimensions and visual quality.
Drag an image here or click to choose one
JPG, PNG or WebP
How compression works
This tool uses the browser's Canvas API to compress images locally: the file is never sent to any server. Just pick an image, adjust the compression level (or use one of the presets) and download the result.
The original dimensions are kept; only the compression quality and output format (JPG, PNG or WebP) affect the final file size. PNG has no quality control since it uses lossless compression.
Frequently asked questions
Is my image sent to any server?
No. All processing happens in your browser using the Canvas API; the file never leaves your device.
Does compressing reduce visual quality?
At moderate levels the difference is nearly imperceptible. More aggressive compression shrinks the file further but can introduce visible artifacts.
Which format should I choose?
Use JPG for photos, PNG when you need transparency or sharp edges (like icons and screenshots), and WebP for the best balance between quality and file size.
Why doesn't PNG have a quality control?
PNG uses lossless compression, so the quality slider doesn't apply. To shrink the file size significantly, prefer JPG or WebP.
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- HEIC to JPG ConverterConvert iPhone HEIC photos to JPG or PNG right in your browser